./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:50:36,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:50:36,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:50:36,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:50:36,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:50:36,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:50:36,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:50:36,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:50:36,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:50:36,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:50:36,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:50:36,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:50:36,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:50:36,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:50:36,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:50:36,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:50:36,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:50:36,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:50:36,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:50:36,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:50:36,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:50:36,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:50:36,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:50:36,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:50:36,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:50:36,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:50:36,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:50:36,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:50:36,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:50:36,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:50:36,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:50:36,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:50:36,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:50:36,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:50:36,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:50:36,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:50:36,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:50:36,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:50:36,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:50:36,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:50:36,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:50:36,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:50:36,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:50:36,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:50:36,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:50:36,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:50:36,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:50:36,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:50:36,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:50:36,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:50:36,808 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:50:36,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:50:36,810 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:50:36,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:50:36,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:50:36,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:50:36,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:50:36,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:50:36,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:50:36,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:50:36,812 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:50:36,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:50:36,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:50:36,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:50:36,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:50:36,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:50:36,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:50:36,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:50:36,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:50:36,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:50:36,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:50:36,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:50:36,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:50:36,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:50:36,816 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:50:36,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:50:36,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:50:36,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2022-11-02 20:50:37,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:50:37,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:50:37,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:50:37,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:50:37,197 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:50:37,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-11-02 20:50:37,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/data/aeacf4fd3/67722ba61f1b424ea355a0e485cc0e7b/FLAGb49741546 [2022-11-02 20:50:38,011 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:50:38,012 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-11-02 20:50:38,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/data/aeacf4fd3/67722ba61f1b424ea355a0e485cc0e7b/FLAGb49741546 [2022-11-02 20:50:38,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/data/aeacf4fd3/67722ba61f1b424ea355a0e485cc0e7b [2022-11-02 20:50:38,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:50:38,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:50:38,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:38,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:50:38,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:50:38,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:38" (1/1) ... [2022-11-02 20:50:38,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b391015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:38, skipping insertion in model container [2022-11-02 20:50:38,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:38" (1/1) ... [2022-11-02 20:50:38,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:50:38,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:50:39,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:39,036 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:50:39,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:39,169 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:50:39,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39 WrapperNode [2022-11-02 20:50:39,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:39,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:39,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:50:39,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:50:39,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,239 INFO L138 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 237 [2022-11-02 20:50:39,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:39,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:50:39,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:50:39,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:50:39,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:50:39,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:50:39,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:50:39,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:50:39,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (1/1) ... [2022-11-02 20:50:39,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:50:39,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:39,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:50:39,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:50:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:50:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:50:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:50:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:50:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:50:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:50:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:50:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:50:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:50:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:50:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:50:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:50:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:50:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:50:39,437 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:50:39,673 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:50:39,675 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:50:40,313 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:50:40,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:50:40,323 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:50:40,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:40 BoogieIcfgContainer [2022-11-02 20:50:40,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:50:40,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:50:40,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:50:40,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:50:40,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:50:38" (1/3) ... [2022-11-02 20:50:40,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507917c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:40, skipping insertion in model container [2022-11-02 20:50:40,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:39" (2/3) ... [2022-11-02 20:50:40,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507917c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:40, skipping insertion in model container [2022-11-02 20:50:40,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:40" (3/3) ... [2022-11-02 20:50:40,334 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2022-11-02 20:50:40,343 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:50:40,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:50:40,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 20:50:40,354 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:50:40,435 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:50:40,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 274 transitions, 553 flow [2022-11-02 20:50:40,597 INFO L130 PetriNetUnfolder]: 6/273 cut-off events. [2022-11-02 20:50:40,597 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:50:40,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 6/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 430 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-02 20:50:40,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 274 transitions, 553 flow [2022-11-02 20:50:40,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 273 transitions, 549 flow [2022-11-02 20:50:40,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:50:40,645 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11bf6445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:50:40,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 20:50:40,660 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2022-11-02 20:50:40,661 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:50:40,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:40,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:40,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:50:40,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash 121722460, now seen corresponding path program 1 times [2022-11-02 20:50:40,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:40,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999832834] [2022-11-02 20:50:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:41,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:41,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999832834] [2022-11-02 20:50:41,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999832834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:41,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:41,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:41,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487326621] [2022-11-02 20:50:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:41,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:50:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:50:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:50:41,597 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 274 [2022-11-02 20:50:41,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 273 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:41,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:41,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 274 [2022-11-02 20:50:41,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:44,020 INFO L130 PetriNetUnfolder]: 2475/7977 cut-off events. [2022-11-02 20:50:44,020 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:50:44,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12951 conditions, 7977 events. 2475/7977 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 62646 event pairs, 1992 based on Foata normal form. 196/7312 useless extension candidates. Maximal degree in co-relation 12850. Up to 4684 conditions per place. [2022-11-02 20:50:44,063 INFO L137 encePairwiseOnDemand]: 234/274 looper letters, 164 selfloop transitions, 107 changer transitions 0/418 dead transitions. [2022-11-02 20:50:44,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 418 transitions, 1381 flow [2022-11-02 20:50:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:50:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:50:44,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2022-11-02 20:50:44,080 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7104622871046229 [2022-11-02 20:50:44,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1168 transitions. [2022-11-02 20:50:44,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1168 transitions. [2022-11-02 20:50:44,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:44,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1168 transitions. [2022-11-02 20:50:44,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:44,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:44,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:44,104 INFO L175 Difference]: Start difference. First operand has 271 places, 273 transitions, 549 flow. Second operand 6 states and 1168 transitions. [2022-11-02 20:50:44,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 418 transitions, 1381 flow [2022-11-02 20:50:44,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 418 transitions, 1380 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:50:44,118 INFO L231 Difference]: Finished difference. Result has 279 places, 370 transitions, 1230 flow [2022-11-02 20:50:44,120 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1230, PETRI_PLACES=279, PETRI_TRANSITIONS=370} [2022-11-02 20:50:44,124 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 8 predicate places. [2022-11-02 20:50:44,124 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 370 transitions, 1230 flow [2022-11-02 20:50:44,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:44,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:44,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:44,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:50:44,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:50:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash -964891731, now seen corresponding path program 1 times [2022-11-02 20:50:44,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:44,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769781589] [2022-11-02 20:50:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:44,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:44,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:44,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769781589] [2022-11-02 20:50:44,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769781589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:44,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:44,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:44,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231283906] [2022-11-02 20:50:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:44,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:50:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:44,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:50:44,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:50:44,622 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 274 [2022-11-02 20:50:44,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 370 transitions, 1230 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:44,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:44,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 274 [2022-11-02 20:50:44,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:46,818 INFO L130 PetriNetUnfolder]: 2669/8641 cut-off events. [2022-11-02 20:50:46,818 INFO L131 PetriNetUnfolder]: For 1696/1698 co-relation queries the response was YES. [2022-11-02 20:50:46,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16551 conditions, 8641 events. 2669/8641 cut-off events. For 1696/1698 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 68990 event pairs, 1874 based on Foata normal form. 0/7773 useless extension candidates. Maximal degree in co-relation 16438. Up to 5042 conditions per place. [2022-11-02 20:50:46,870 INFO L137 encePairwiseOnDemand]: 237/274 looper letters, 263 selfloop transitions, 107 changer transitions 0/518 dead transitions. [2022-11-02 20:50:46,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 518 transitions, 2458 flow [2022-11-02 20:50:46,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:50:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:50:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1160 transitions. [2022-11-02 20:50:46,875 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7055961070559611 [2022-11-02 20:50:46,875 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1160 transitions. [2022-11-02 20:50:46,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1160 transitions. [2022-11-02 20:50:46,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:46,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1160 transitions. [2022-11-02 20:50:46,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:46,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:46,884 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:46,884 INFO L175 Difference]: Start difference. First operand has 279 places, 370 transitions, 1230 flow. Second operand 6 states and 1160 transitions. [2022-11-02 20:50:46,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 518 transitions, 2458 flow [2022-11-02 20:50:46,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 518 transitions, 2458 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:50:46,907 INFO L231 Difference]: Finished difference. Result has 288 places, 470 transitions, 2110 flow [2022-11-02 20:50:46,908 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2110, PETRI_PLACES=288, PETRI_TRANSITIONS=470} [2022-11-02 20:50:46,909 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 17 predicate places. [2022-11-02 20:50:46,909 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 470 transitions, 2110 flow [2022-11-02 20:50:46,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:46,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:46,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:46,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:50:46,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:50:46,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:46,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1248115734, now seen corresponding path program 1 times [2022-11-02 20:50:46,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:46,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977700604] [2022-11-02 20:50:46,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:46,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:46,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977700604] [2022-11-02 20:50:46,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977700604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:46,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:46,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:50:46,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54855857] [2022-11-02 20:50:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:46,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:46,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:46,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:46,973 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-02 20:50:46,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 470 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:46,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:46,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-02 20:50:46,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:48,114 INFO L130 PetriNetUnfolder]: 1071/4168 cut-off events. [2022-11-02 20:50:48,114 INFO L131 PetriNetUnfolder]: For 1160/1172 co-relation queries the response was YES. [2022-11-02 20:50:48,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8535 conditions, 4168 events. 1071/4168 cut-off events. For 1160/1172 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26634 event pairs, 96 based on Foata normal form. 0/3929 useless extension candidates. Maximal degree in co-relation 8341. Up to 1144 conditions per place. [2022-11-02 20:50:48,158 INFO L137 encePairwiseOnDemand]: 268/274 looper letters, 67 selfloop transitions, 4 changer transitions 0/502 dead transitions. [2022-11-02 20:50:48,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 502 transitions, 2316 flow [2022-11-02 20:50:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:50:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2022-11-02 20:50:48,237 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9355231143552312 [2022-11-02 20:50:48,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 769 transitions. [2022-11-02 20:50:48,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 769 transitions. [2022-11-02 20:50:48,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:48,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 769 transitions. [2022-11-02 20:50:48,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:48,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:48,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:48,242 INFO L175 Difference]: Start difference. First operand has 288 places, 470 transitions, 2110 flow. Second operand 3 states and 769 transitions. [2022-11-02 20:50:48,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 502 transitions, 2316 flow [2022-11-02 20:50:48,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 502 transitions, 2124 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-02 20:50:48,266 INFO L231 Difference]: Finished difference. Result has 291 places, 472 transitions, 1942 flow [2022-11-02 20:50:48,267 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1918, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1942, PETRI_PLACES=291, PETRI_TRANSITIONS=472} [2022-11-02 20:50:48,268 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 20 predicate places. [2022-11-02 20:50:48,268 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 472 transitions, 1942 flow [2022-11-02 20:50:48,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:48,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:48,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:48,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:50:48,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:50:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash -119349012, now seen corresponding path program 1 times [2022-11-02 20:50:48,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:48,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641771453] [2022-11-02 20:50:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:48,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:48,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641771453] [2022-11-02 20:50:48,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641771453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:48,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:48,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:48,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216860749] [2022-11-02 20:50:48,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:48,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:50:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:48,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:50:48,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:50:48,695 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 274 [2022-11-02 20:50:48,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 472 transitions, 1942 flow. Second operand has 6 states, 6 states have (on average 141.16666666666666) internal successors, (847), 6 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:48,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:48,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 274 [2022-11-02 20:50:48,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:52,900 INFO L130 PetriNetUnfolder]: 5581/16323 cut-off events. [2022-11-02 20:50:52,901 INFO L131 PetriNetUnfolder]: For 9445/9471 co-relation queries the response was YES. [2022-11-02 20:50:52,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37720 conditions, 16323 events. 5581/16323 cut-off events. For 9445/9471 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 130968 event pairs, 4152 based on Foata normal form. 0/14776 useless extension candidates. Maximal degree in co-relation 37497. Up to 11069 conditions per place. [2022-11-02 20:50:53,019 INFO L137 encePairwiseOnDemand]: 268/274 looper letters, 328 selfloop transitions, 5 changer transitions 0/471 dead transitions. [2022-11-02 20:50:53,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 471 transitions, 2606 flow [2022-11-02 20:50:53,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:50:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:50:53,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 954 transitions. [2022-11-02 20:50:53,023 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5802919708029197 [2022-11-02 20:50:53,023 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 954 transitions. [2022-11-02 20:50:53,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 954 transitions. [2022-11-02 20:50:53,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:53,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 954 transitions. [2022-11-02 20:50:53,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:53,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:53,044 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:53,045 INFO L175 Difference]: Start difference. First operand has 291 places, 472 transitions, 1942 flow. Second operand 6 states and 954 transitions. [2022-11-02 20:50:53,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 471 transitions, 2606 flow [2022-11-02 20:50:53,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 471 transitions, 2602 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:50:53,071 INFO L231 Difference]: Finished difference. Result has 294 places, 471 transitions, 1946 flow [2022-11-02 20:50:53,072 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1946, PETRI_PLACES=294, PETRI_TRANSITIONS=471} [2022-11-02 20:50:53,074 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 23 predicate places. [2022-11-02 20:50:53,074 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 471 transitions, 1946 flow [2022-11-02 20:50:53,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.16666666666666) internal successors, (847), 6 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:53,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:53,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:53,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:50:53,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:50:53,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1111224204, now seen corresponding path program 1 times [2022-11-02 20:50:53,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:53,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111892266] [2022-11-02 20:50:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:53,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:53,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111892266] [2022-11-02 20:50:53,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111892266] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:53,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70086241] [2022-11-02 20:50:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:53,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:53,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:53,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:53,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:50:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:53,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:50:53,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:53,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:53,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70086241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:53,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:53,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 20:50:53,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175771225] [2022-11-02 20:50:53,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:53,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:50:53,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:53,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:50:53,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:50:53,746 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 274 [2022-11-02 20:50:53,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 471 transitions, 1946 flow. Second operand has 10 states, 10 states have (on average 235.3) internal successors, (2353), 10 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:53,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:53,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 274 [2022-11-02 20:50:53,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:55,002 INFO L130 PetriNetUnfolder]: 1073/4211 cut-off events. [2022-11-02 20:50:55,002 INFO L131 PetriNetUnfolder]: For 689/701 co-relation queries the response was YES. [2022-11-02 20:50:55,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8394 conditions, 4211 events. 1073/4211 cut-off events. For 689/701 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26392 event pairs, 96 based on Foata normal form. 2/3979 useless extension candidates. Maximal degree in co-relation 8123. Up to 902 conditions per place. [2022-11-02 20:50:55,029 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 71 selfloop transitions, 13 changer transitions 0/514 dead transitions. [2022-11-02 20:50:55,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 514 transitions, 2218 flow [2022-11-02 20:50:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:50:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:50:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2165 transitions. [2022-11-02 20:50:55,034 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8779399837793999 [2022-11-02 20:50:55,034 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2165 transitions. [2022-11-02 20:50:55,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2165 transitions. [2022-11-02 20:50:55,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:55,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2165 transitions. [2022-11-02 20:50:55,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 240.55555555555554) internal successors, (2165), 9 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,047 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,047 INFO L175 Difference]: Start difference. First operand has 294 places, 471 transitions, 1946 flow. Second operand 9 states and 2165 transitions. [2022-11-02 20:50:55,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 514 transitions, 2218 flow [2022-11-02 20:50:55,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 514 transitions, 2192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:50:55,066 INFO L231 Difference]: Finished difference. Result has 300 places, 478 transitions, 2004 flow [2022-11-02 20:50:55,067 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2004, PETRI_PLACES=300, PETRI_TRANSITIONS=478} [2022-11-02 20:50:55,067 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 29 predicate places. [2022-11-02 20:50:55,067 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 478 transitions, 2004 flow [2022-11-02 20:50:55,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 235.3) internal successors, (2353), 10 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:55,069 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:55,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:55,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:55,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:50:55,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:55,283 INFO L85 PathProgramCache]: Analyzing trace with hash -227998028, now seen corresponding path program 2 times [2022-11-02 20:50:55,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:55,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948241041] [2022-11-02 20:50:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:55,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:55,704 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:55,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:55,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948241041] [2022-11-02 20:50:55,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948241041] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:55,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571080551] [2022-11-02 20:50:55,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:50:55,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:55,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:55,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:55,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:50:55,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:50:55,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:55,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 20:50:55,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:55,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:50:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:50:55,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-02 20:50:56,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:50:56,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:50:56,035 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:50:56,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-02 20:50:56,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:50:56,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:50:56,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:50:56,077 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:50:56,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-02 20:50:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-02 20:50:56,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:56,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571080551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:56,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:50:56,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-02 20:50:56,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780295583] [2022-11-02 20:50:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:56,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:50:56,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:56,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:50:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:50:56,115 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 274 [2022-11-02 20:50:56,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 478 transitions, 2004 flow. Second operand has 8 states, 8 states have (on average 156.375) internal successors, (1251), 8 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:56,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:56,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 274 [2022-11-02 20:50:56,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:01,722 INFO L130 PetriNetUnfolder]: 6495/18399 cut-off events. [2022-11-02 20:51:01,722 INFO L131 PetriNetUnfolder]: For 9018/9101 co-relation queries the response was YES. [2022-11-02 20:51:01,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42166 conditions, 18399 events. 6495/18399 cut-off events. For 9018/9101 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 145794 event pairs, 3567 based on Foata normal form. 0/16800 useless extension candidates. Maximal degree in co-relation 41872. Up to 10958 conditions per place. [2022-11-02 20:51:01,897 INFO L137 encePairwiseOnDemand]: 227/274 looper letters, 563 selfloop transitions, 174 changer transitions 0/900 dead transitions. [2022-11-02 20:51:01,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 900 transitions, 4694 flow [2022-11-02 20:51:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:51:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:51:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1877 transitions. [2022-11-02 20:51:01,906 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7611516626115167 [2022-11-02 20:51:01,907 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1877 transitions. [2022-11-02 20:51:01,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1877 transitions. [2022-11-02 20:51:01,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:01,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1877 transitions. [2022-11-02 20:51:01,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 208.55555555555554) internal successors, (1877), 9 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,923 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,924 INFO L175 Difference]: Start difference. First operand has 300 places, 478 transitions, 2004 flow. Second operand 9 states and 1877 transitions. [2022-11-02 20:51:01,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 900 transitions, 4694 flow [2022-11-02 20:51:01,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 900 transitions, 4684 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-02 20:51:01,973 INFO L231 Difference]: Finished difference. Result has 312 places, 640 transitions, 3474 flow [2022-11-02 20:51:01,974 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1994, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3474, PETRI_PLACES=312, PETRI_TRANSITIONS=640} [2022-11-02 20:51:01,977 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 41 predicate places. [2022-11-02 20:51:01,978 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 640 transitions, 3474 flow [2022-11-02 20:51:01,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 156.375) internal successors, (1251), 8 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:01,979 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:02,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:02,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:51:02,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:51:02,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1836787897, now seen corresponding path program 1 times [2022-11-02 20:51:02,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:02,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646723937] [2022-11-02 20:51:02,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:02,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:02,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:02,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646723937] [2022-11-02 20:51:02,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646723937] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:02,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769921305] [2022-11-02 20:51:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:02,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:02,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:02,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:02,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:51:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:03,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:51:03,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:03,310 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:03,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:03,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769921305] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:03,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:03,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 20:51:03,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110404966] [2022-11-02 20:51:03,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:03,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:51:03,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:51:03,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:51:03,612 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 274 [2022-11-02 20:51:03,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 640 transitions, 3474 flow. Second operand has 18 states, 18 states have (on average 236.05555555555554) internal successors, (4249), 18 states have internal predecessors, (4249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:03,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:03,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 274 [2022-11-02 20:51:03,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:06,220 INFO L130 PetriNetUnfolder]: 2011/6923 cut-off events. [2022-11-02 20:51:06,220 INFO L131 PetriNetUnfolder]: For 9112/9206 co-relation queries the response was YES. [2022-11-02 20:51:06,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19737 conditions, 6923 events. 2011/6923 cut-off events. For 9112/9206 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 46982 event pairs, 174 based on Foata normal form. 4/6565 useless extension candidates. Maximal degree in co-relation 19128. Up to 1697 conditions per place. [2022-11-02 20:51:06,268 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 171 selfloop transitions, 25 changer transitions 0/756 dead transitions. [2022-11-02 20:51:06,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 756 transitions, 4342 flow [2022-11-02 20:51:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 20:51:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 20:51:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4987 transitions. [2022-11-02 20:51:06,278 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8667014250955857 [2022-11-02 20:51:06,278 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4987 transitions. [2022-11-02 20:51:06,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4987 transitions. [2022-11-02 20:51:06,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:06,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4987 transitions. [2022-11-02 20:51:06,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 237.47619047619048) internal successors, (4987), 21 states have internal predecessors, (4987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:06,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:06,305 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:06,305 INFO L175 Difference]: Start difference. First operand has 312 places, 640 transitions, 3474 flow. Second operand 21 states and 4987 transitions. [2022-11-02 20:51:06,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 756 transitions, 4342 flow [2022-11-02 20:51:06,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 756 transitions, 4300 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-11-02 20:51:06,356 INFO L231 Difference]: Finished difference. Result has 334 places, 653 transitions, 3576 flow [2022-11-02 20:51:06,357 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3576, PETRI_PLACES=334, PETRI_TRANSITIONS=653} [2022-11-02 20:51:06,358 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 63 predicate places. [2022-11-02 20:51:06,358 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 653 transitions, 3576 flow [2022-11-02 20:51:06,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 236.05555555555554) internal successors, (4249), 18 states have internal predecessors, (4249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:06,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:06,361 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:06,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:06,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 20:51:06,586 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:51:06,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:06,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1455200967, now seen corresponding path program 2 times [2022-11-02 20:51:06,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:06,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932104805] [2022-11-02 20:51:06,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:06,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:07,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:07,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932104805] [2022-11-02 20:51:07,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932104805] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:07,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707710784] [2022-11-02 20:51:07,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:51:07,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:07,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:07,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:51:08,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:51:08,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:08,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:51:08,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:08,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:51:08,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 20:51:08,228 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:51:08,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-02 20:51:08,270 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:51:08,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-02 20:51:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-02 20:51:08,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:08,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707710784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:08,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:51:08,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 20:51:08,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283154015] [2022-11-02 20:51:08,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:08,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:08,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:08,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:08,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:51:08,310 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 274 [2022-11-02 20:51:08,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 653 transitions, 3576 flow. Second operand has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:08,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:08,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 274 [2022-11-02 20:51:08,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:16,520 INFO L130 PetriNetUnfolder]: 6860/20088 cut-off events. [2022-11-02 20:51:16,520 INFO L131 PetriNetUnfolder]: For 33995/34083 co-relation queries the response was YES. [2022-11-02 20:51:16,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63613 conditions, 20088 events. 6860/20088 cut-off events. For 33995/34083 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 163286 event pairs, 3402 based on Foata normal form. 0/18558 useless extension candidates. Maximal degree in co-relation 62947. Up to 12645 conditions per place. [2022-11-02 20:51:16,692 INFO L137 encePairwiseOnDemand]: 231/274 looper letters, 539 selfloop transitions, 170 changer transitions 0/888 dead transitions. [2022-11-02 20:51:16,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 888 transitions, 6820 flow [2022-11-02 20:51:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2022-11-02 20:51:16,698 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7694647201946472 [2022-11-02 20:51:16,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2022-11-02 20:51:16,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2022-11-02 20:51:16,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:16,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2022-11-02 20:51:16,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,707 INFO L175 Difference]: Start difference. First operand has 334 places, 653 transitions, 3576 flow. Second operand 6 states and 1265 transitions. [2022-11-02 20:51:16,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 888 transitions, 6820 flow [2022-11-02 20:51:16,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 888 transitions, 6794 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 20:51:16,796 INFO L231 Difference]: Finished difference. Result has 338 places, 814 transitions, 5964 flow [2022-11-02 20:51:16,797 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3550, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5964, PETRI_PLACES=338, PETRI_TRANSITIONS=814} [2022-11-02 20:51:16,800 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 67 predicate places. [2022-11-02 20:51:16,800 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 814 transitions, 5964 flow [2022-11-02 20:51:16,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:16,802 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:16,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:17,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:17,030 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:51:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2064043383, now seen corresponding path program 1 times [2022-11-02 20:51:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:17,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035747734] [2022-11-02 20:51:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:17,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:18,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:18,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035747734] [2022-11-02 20:51:18,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035747734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:18,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693889586] [2022-11-02 20:51:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:18,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:18,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:18,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:18,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:51:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:18,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:51:18,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:19,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:19,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693889586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:19,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:19,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 20:51:19,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637001291] [2022-11-02 20:51:19,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:19,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 20:51:19,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:19,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 20:51:19,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 20:51:19,995 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 274 [2022-11-02 20:51:20,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 814 transitions, 5964 flow. Second operand has 23 states, 23 states have (on average 236.69565217391303) internal successors, (5444), 23 states have internal predecessors, (5444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:20,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:20,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 274 [2022-11-02 20:51:20,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:23,640 INFO L130 PetriNetUnfolder]: 2734/9294 cut-off events. [2022-11-02 20:51:23,641 INFO L131 PetriNetUnfolder]: For 21387/23608 co-relation queries the response was YES. [2022-11-02 20:51:23,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30554 conditions, 9294 events. 2734/9294 cut-off events. For 21387/23608 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 66561 event pairs, 230 based on Foata normal form. 3/8883 useless extension candidates. Maximal degree in co-relation 29659. Up to 2463 conditions per place. [2022-11-02 20:51:23,715 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 262 selfloop transitions, 34 changer transitions 0/985 dead transitions. [2022-11-02 20:51:23,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 985 transitions, 7578 flow [2022-11-02 20:51:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 20:51:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 20:51:23,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7101 transitions. [2022-11-02 20:51:23,730 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8638686131386861 [2022-11-02 20:51:23,730 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7101 transitions. [2022-11-02 20:51:23,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7101 transitions. [2022-11-02 20:51:23,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:23,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7101 transitions. [2022-11-02 20:51:23,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 236.7) internal successors, (7101), 30 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:23,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:23,765 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:23,765 INFO L175 Difference]: Start difference. First operand has 338 places, 814 transitions, 5964 flow. Second operand 30 states and 7101 transitions. [2022-11-02 20:51:23,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 985 transitions, 7578 flow [2022-11-02 20:51:23,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 985 transitions, 6122 flow, removed 728 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:23,868 INFO L231 Difference]: Finished difference. Result has 371 places, 824 transitions, 4930 flow [2022-11-02 20:51:23,869 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4764, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=814, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4930, PETRI_PLACES=371, PETRI_TRANSITIONS=824} [2022-11-02 20:51:23,870 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 100 predicate places. [2022-11-02 20:51:23,870 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 824 transitions, 4930 flow [2022-11-02 20:51:23,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 236.69565217391303) internal successors, (5444), 23 states have internal predecessors, (5444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:23,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:23,872 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:23,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:24,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6838e637-3fec-43f7-9afc-189c948128eb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:24,086 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:51:24,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:24,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1082179861, now seen corresponding path program 2 times [2022-11-02 20:51:24,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:24,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141840334] [2022-11-02 20:51:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:24,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-02 20:51:27,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:27,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141840334] [2022-11-02 20:51:27,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141840334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:27,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:27,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:51:27,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053178743] [2022-11-02 20:51:27,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:27,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:51:27,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:27,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:51:27,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:51:27,298 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 274 [2022-11-02 20:51:27,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 824 transitions, 4930 flow. Second operand has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:27,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:27,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 274 [2022-11-02 20:51:27,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:46,282 INFO L130 PetriNetUnfolder]: 15039/41630 cut-off events. [2022-11-02 20:51:46,283 INFO L131 PetriNetUnfolder]: For 99322/99954 co-relation queries the response was YES. [2022-11-02 20:51:46,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143984 conditions, 41630 events. 15039/41630 cut-off events. For 99322/99954 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 384715 event pairs, 875 based on Foata normal form. 264/38962 useless extension candidates. Maximal degree in co-relation 142942. Up to 13736 conditions per place. [2022-11-02 20:51:46,655 INFO L137 encePairwiseOnDemand]: 218/274 looper letters, 1524 selfloop transitions, 424 changer transitions 0/2115 dead transitions. [2022-11-02 20:51:46,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 2115 transitions, 16816 flow [2022-11-02 20:51:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-02 20:51:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-02 20:51:46,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6686 transitions. [2022-11-02 20:51:46,670 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5809871393813 [2022-11-02 20:51:46,670 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6686 transitions. [2022-11-02 20:51:46,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6686 transitions. [2022-11-02 20:51:46,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:46,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6686 transitions. [2022-11-02 20:51:46,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 159.1904761904762) internal successors, (6686), 42 states have internal predecessors, (6686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,712 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,712 INFO L175 Difference]: Start difference. First operand has 371 places, 824 transitions, 4930 flow. Second operand 42 states and 6686 transitions. [2022-11-02 20:51:46,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 2115 transitions, 16816 flow [2022-11-02 20:51:46,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 2115 transitions, 16768 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 20:51:47,001 INFO L231 Difference]: Finished difference. Result has 413 places, 1109 transitions, 8413 flow [2022-11-02 20:51:47,003 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4882, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=8413, PETRI_PLACES=413, PETRI_TRANSITIONS=1109} [2022-11-02 20:51:47,005 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 142 predicate places. [2022-11-02 20:51:47,005 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 1109 transitions, 8413 flow [2022-11-02 20:51:47,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:47,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:47,006 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:51:47,007 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:51:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1811982851, now seen corresponding path program 1 times [2022-11-02 20:51:47,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:47,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491772259] [2022-11-02 20:51:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-02 20:51:49,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:49,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491772259] [2022-11-02 20:51:49,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491772259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:49,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:49,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:51:49,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188193875] [2022-11-02 20:51:49,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:49,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:51:49,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:49,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:51:49,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:51:49,494 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 274 [2022-11-02 20:51:49,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 1109 transitions, 8413 flow. Second operand has 11 states, 11 states have (on average 135.27272727272728) internal successors, (1488), 11 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:49,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 274 [2022-11-02 20:51:49,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand